Jeanswear designer Guess? Inc has posted a 20.5 per cent increase in second quarter sales to $115.2 million, up from $95.7m in the same period a year ago.

The California-based company, which operates 264 retail outlets across the United States and Canada, also reported a comparable store sales increase of 15.1 per cent for the three-month period.

For the four weeks to June 26, the company registered an 18.8 per cent year-on-year increase in sales to $29.2m and a comparable store sales rise of 12.7 per cent.